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Unknown type: 4 error

Hi folks,

I followed dr.green's tutorial with a dlink dbt-120 adapter and got to the point where I can see the UP RUNNING RAW and on running the csrsniff.c (aka frontline.c) with a -t option I can see an incrementing timer. After that, when I enter something like:

./csrsniff -d hci0 -S 00:1D:6E:12:65:95@00:1F:6B:88:FF:BC

then all I see is a bunch of "Unknown type: 4" messages. I tried it before pairing two mobile phones, during file transfer and with two linux pc's but i get the same message everytime. From the csrsniff.c file, this refers to a check in the program to confirm reception of a HCI_ACLDATA_PKT (which has a code 0x02) but instead all it receives right now is 0x04 (which is a HCI_EVENT_PKT).